Lug strap



June 8, 1948. w, McKlNLEY 2,443,111

LUG S TRAP Filed May 24 1 946 Inventor WILLIAM MeKI NLEY Patented June8, 1948 UNITED STATES PATENT OFFIQE 7 Claims.

This invention relates to improvements in a lug strap and appertainsparticularly to such a device for transmitting the movement of theconnecting rod or like operating member to the shuttle-throwing sweepstick in a conventional power loom,

An object of the invention is to provide an improved lug strap mountedon the free end of a driven reciprocating member for operating the sweepstick having a novel stick-engaging cushion heel.

Another object of the invention is to provide an improved sweep sticklug strap having an easily replaceable, laminated leather heel orcushion block.

Another object of the invention is to provide a lug strap for the sweepstick of a power loom having a cushion heel formed of laminated leatherreplaceably secured between spaced side plates and held againstcircumferential displacement by the unique inter-engaging formations ofthe cushion block and side plates.

A still further object of the invention is to provide a lug strap forthe sweep stick of a power loom of the nature and for the purposesdescribed that is characterized by structural simplicity, operativeefficiency, durability, and ease of installation and replacement ofparts and being capable of manufacture at reasonable cost is therebyrendered commercially desirable.

To the accomplishment of these and related objects as shall becomeapparent as the description proceeds, the invention resides in theconstruction, combination and arrangement of parts as shall behereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereunto appended.

The invention will be best understood and can be more clearly describedwhen reference is had to the drawings forming a part of this disclosurewherein like characters indicate like parts throughout the severalviews.

In the drawings:

Figure 1 is a perspective view of the improved lug strap; and

Figures 2 and 3 are elevations of the heel end and side respectively ofsaid lu strap.

In the conventional power loom, each reciprocation of the connecting rodimparts quite a jar to the sweep stick or picker stick or staff as thehinged, shuttle-throwing arm is variously called. For this reason somesort of cushion, pad or buffer in the heel or sweep stick engaging endof the lug strap is desirable. In some areas it is common practice touse a cotton packing but I have found that a large-sized heel oflaminated leather secured in the end of the lug strap with a substantialarea facing the outside of the picker or sweep stick possesses many andgreat advantages being more durable than the cotton, can occur ingreater depth because of the inherent qualities of the substance,especially in laminated form, can be secured by a single fastening boltand held against rotative displacement thereon by the structuralformation or configuration of the laminated leather cushion block andthe was side plates, all of which makes for easy and rapid replacementand relatively cheap manufacture.

The preferred embodiment of the lug strap shown in the drawings, beingcharacteristic of the instant invention comprises a pair of side plates5 each formed of an elongated strip of steel or other suitable metal,rounded as at 6 at one end and provided with a longitudinally spacedpair of transverse perforations 1 0n the longitudinal median. By meansof these perforations the plates 5 are secured by transverse fasteningbolts and nuts to the free or outer end of the connecting rod or otherdriving mechanism of the loom. which being common practice obviates theneed to show either the fastening bolts or looms connecting rod.

Near the opposite end, each side plate 5 has a transverse perforation 8on its longitudinal median and the end 9 of the strap bent at a rightangle with the center portion It), representing approximately one-thirdof the height interrupted or cut away for the entire width thereof sothat the inbent angular end appears as a pair of vertically spaced upperand lower fingers l l and l2.

A heel cushion block l4 consisting of laminated leather with the severalsheets thereof standing vertically is disposed between the pair ofelongated, laterally spaced pair of parallel side plates 5, and abuttingthe fingers II and I2 of the inturned end flanges 9 thereof, extendsinwards therefrom beyond the registering perforations 8. This laminatedheel block I is of the same height as the side plates 5, terminatinflush with upper and lower edges thereof and'of approximately the samewidth as the connecting rod of the loom en gaged by the opposite end ofthe assembled lug strap. The overlying flanges 9 on the ends of the sideplates each extend but about one-third of the way across the end of theheel block M leaving approximately the centre one-third open.

A transversely disposed tongue I5 extends horizontally from the end ofthe block l4 midway of the height across the entire width thereof and Inuse, this laminated leather heel cushion will be found to engage thesweep stick most eflicientlyl.

occasioning less jar, affording longer useful life, and being so easilyand quicklyschan'gedi. The

of said rod, a resilient cushion block of laminated sheets of leathertightly compressed between the free outer ends of said platesintermittently en gaging said sweep stick, a removable securing boltextended transversely through said side plates and the several sheets ofthe intermediate cushion block, a nut' on said bolt tightly compressingsaid laminated block and supplementary displacement preventing meansformed on said block and; engaging said sideplatesg j 5. For a powerloom having a reciprocating.

connecting rod or like driving member and a "sweep stick, a lug strapfor attachment to the connecting rod comprising a pair of elongated sideplates attached by one end to opposite sides ofsaid rodna'cushion blockof laminated leather projecting tongue lying between...the.ver ticallyseparated fingers on the endilanges that share with the transverse boltand compressed. side.

plates in absorbing the blow on the cushion, effectively-prevents theheeliromturning.onithe single securingv bolt.

.From .the... foregoing description. taken. in. con} 7 loom comprising apair of spacedelongated sidev plates each having a verticallyseparatedpair of fingers bent inwards at. one end and. a laminated leather.wcushionheel secured between said. side platcs...andz abutting saidint'urned'. .fingersand projecting between said vertically separatedfingers. m l

2. A lug strap iorithei sweep. stick oi apower loom.- comprisingapair ofspaced elongatedside plates, each having/a ve'ntically. separatedpair.of fingers bcntinwardsat. one end. andai laminated leather. cushionheel. secured between saidside plates andnbutting said inturnedifingers,saidheel having aiproj ecting horizontal, tongue extending between. the.vertically separated. inturned fingers on anend of. each of said sideplates. a

"3. A lug strap for the sweep stick of a power I loom,comprisingv apairof spaced. elongated side plates. each having a vertically separatedpairof fingersrbent inwards atone endanda laminated leathercushion heelsecured between. said side plates andabutting said. inturnedi fingers,.said heel. having, a. horizontal tongue. extended. from anend thereof,across. its iull width and lying between. thevertically\separatedinturnedv fingers of said respectiveplates.

lior..a power -,loom having. a. reciprocating connecting rod. or likedriving. member andv a sweep ,stick, a lug strap. for. attachmentto theconnecting rod comprising .a. pair. of elongated side.platesattachediby,one end to opposite sides between the outer ends of said platesintermittently engaging said sweep stick, removable fastening. meansextended transversely through said side plates and intermediate-cushionblock tightly compressing the. same and. displacement preventing meansprotruding from said. bloc and accommodated by side. plates. ,4 s 16.;Forapower loomhavinga reciprocating connecting rod or like drivingmember and asweep stick, a lug strap for attachment to the connectingrod comprising a pair. of elongated side plateslattached by one.endtoopposite sides oi-saidr-od, alaminated leather heel whose sheets.stand verticallywdisposed between theside platestatia distance beyondthe end of said rod and engage.- able with said sweep stick, aremovable: fasteningi means extended transversely through said side;plates and all the sheets: of the: intermediate laminated leather heeland inter-engaging means on.-.said. laminated leather heel.iandbsaidsside platespreventing. relative. rotative; displacementofisaid heel. andside, plates; 7

. 7.. For a power. loom .having reciprocating con.- necting radonlikedriving. member, and i asweep stick, a, lug. strap for. attachment to,theqcom necting rod comprising. a pair x01 ielongatedfsideplatestattached by one ends-t0 -oppositensidesof said. rod; centrallyinterrupted \inturned .flanges atathe free. end of saidplates occurring:as v verb:- tically. spaced fingers, a, cushioning-n. heel; of laminated.leather disposed ,.betweenthe aside plates abutting saidinturnedflangesasaid' cushioning heel being of athickness td holdtthelvertically spaced fingers-of said--inturned-.flanges=,in confronting but rtransversely spaced relation; a horizontal: tongue extended from amend'ofvsaid heel across; its! full width and lying the-tween, thevertically separated-fingers-ot saidz-flangeseandia compressingremovable fastener extended: hori+ zontally through said plates and--lami-nated=;heel approximately.centrally-pf; thelatter..

- REFERENCES l errant-- The following references are of record; file ofthis patent:

3 UNITED STATESYBATENTS 7 Date:

